Hey Donald, Make sure you turn Data on on the phone by going to settings then data usage and there you will see a place to enable data.
Log into your self serve account and make sure you don't have the data block added to your account and if you do remove it.
Still not working then change the APN settings in the settings menu to those of Koodo's.
Username: leave blank
Password: leave blank
Server: leave blank
MMSC: http ://aliasredirect.net/proxy/koodo/mmsc
MMS Proxy server: 126.96.36.199
MMS Port: 80
Authentication type: No set
APN type: No set
Tap menu key, then tap Save. Make sure the radio button is selected to activate data. The frequencies are compatible so it should work